Ziegler type catalyst system

Details Ziegler type catalyst system Ziegler type catalyst system

1977-02-11

1978-06-13

Garvin, Patrick P.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252431N, 526153, B01J 3102, B01J 3112

Patent

active

040948188

ABSTRACT:
A new improved Ziegler type catalyst system for alpha-olefin type polymerization includes R'.sub.3 Y or R'.sub.2 YX and mixtures thereof, at least one Group IVB-VIII transition metal halide and an alkyl metal compound selected from R'.sub.2 YNR.sub.2 and R'XYNR.sub.2, wherein Y is Al, Ga or In. The improved catalyst system provides increased polymerization activity without significantly affecting the crystallinity of the polymer.

REFERENCES:
patent: 3135724 (1964-06-01), Price
patent: 3418304 (1968-12-01), Langer et al.
patent: 3489736 (1970-01-01), Takahashi et al.
patent: 3503947 (1970-03-01), Kosaka et al.
patent: 3642746 (1972-02-01), Kashiwa et al.
patent: 3723348 (1973-03-01), Apotleker et al.
patent: 3905913 (1975-09-01), Gorbellini et al.

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